examples: interactive earthquakes: use pow scale initial

vega · May 8, 2022 · d93d48b · d93d48b
1 parent 0982e0b
commit d93d48b
Showing 1 changed file with 11 additions and 7 deletions.
diff --git a/examples/specs/interactive_geo_earthquakes.vl.json b/examples/specs/interactive_geo_earthquakes.vl.json
@@ -49,15 +49,19 @@
           "filter": "(rotate0 * -1) - 90 < datum.longitude && datum.longitude < (rotate0 * -1) + 90 && (rotate1 * -1) - 90 < datum.latitude && datum.latitude < (rotate1 * -1) + 90"
         }
       ],
-      "mark": {
-        "type": "circle",
-        "color": "red",
-        "opacity": 0.25,
-        "size": {"expr": "earthquakeSize * datum.properties.mag"}
-      },
+      "mark": {"type": "circle", "color": "red", "opacity": 0.25},
       "encoding": {
         "longitude": {"field": "longitude", "type": "quantitative"},
-        "latitude": {"field": "latitude", "type": "quantitative"}
+        "latitude": {"field": "latitude", "type": "quantitative"},
+        "size": {
+          "field": "properties.mag",
+          "type": "quantitative",
+          "scale": {
+            "type": "pow",
+            "range": [0, 1000],
+            "exponent": {"expr": "12-earthquakeSize"}
+          }
+        }
       }
     }
   ],